• 8 Wisconsin Historical Society Library
• 5 Memorial Library
• 1 Verona Shelving Facility
• 1 WHS State Archives Preservation Facility
• 1 Wisconsin Historical Society Archives

• 1 Microforms

• 4 Working class
• 3 Labor movement
• 3 Labor unions
• 2 Socialism
• 1 Agrupación "Superación"
• 1 Agrupación Anarquista "Aurora Libertaria"
• 1 Agrupación C.A. "Armonia"
• 1 Direct action
• 1 Employees
• 1 Footwear industry
• 1 Labour unions
• 1 Libertarianism
• 1 Merchant mariners
• 1 Political activity
• 1 Politics and government
• 1 Shoe industry
• 1 Sociedad de Resistencia Obreros de la Industria del Calzado
• 1 World politics
• 1 Youth

• 3 International Workers Association
• 1 Agrupación "Superación"
• 1 Agrupación Anarquista "Aurora Libertaria"
• 1 Agrupación Anarquista de Obreros Lavadores y Limpia Bronces de Autos
• 1 Agrupación C.A. "Armonia"
• 1 Agrupación Voluntad
• 1 Alianza Libertaria Argentina
• 1 Confederación Nacional del Trabajo (Spain)
• 1 Demonstrator Group
• 1 Deutsche-Anarcho-Syndikalisten
• 1 F. A. I. (Organization : Spain)
• 1 F.I.J.L. (Organization : Spain)
• 1 Federación Obrera Regional Argentina Comunista
• 1 Freie Arbeiter-Union Deutschlands
• 1 Industrial Workers of the World. Transporte Maritimo
• 1 International Working Men's Association (1922- )
• 1 Libertarian Workers Group
• 1 Sociedad de Resistencia Obreros de la Industria del Calzado
• 1 Solidarity Federation
• 1 Verband deutscher Schulen im Ausland
• 1 Workers Solidarity Alliance
• 1 Workers Solidarity Alliance. New York Area Group
• 1 Workers Solidarity Alliance. SF Bay Area Group
• 1 Workers Solidarity Alliance. Working Group on Eastern Europe
• 1 Workers Solidarity Alliance/International Workers Alliance

• 10 English
• 9 Spanish
• 1 French
• 1 German
• 1 Italian

• 7 Argentina
• 2 Spain
• 1 Chile
• 1 Córdoba
• 1 Europe, Eastern
• 1 France
• 1 Great Britain
• 1 Latin America
• 1 South Africa
• 1 United States
• 1 Uruguay

• 21 Periodicals

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